Column-clamp.



J. E. LANGPORD.

COLUMN CLAMP.

APPLIOATION FILED HAB. 24, 1908. 916,169. Patented 1\Im-.23,19o9.l

E dal 15" I i 1].73 e`"""1"3"="r I l n u" n i 25 la 'g A f; L? "m ATTORNEYS UNTED STAEB PATENT OFFCB.

JOSEPH E. LANGFORD, OF OTTUMWA, IOWA.

COLUMN-CLAMP.

To all whom fit may concern:

Be it known that I, JOSEPH E. LANGFORD, a citizen of the United States, and a resident of Ottumwa, in the county of l/Vapello and State of Iowa, have invented a new and lmproved Column-Clamp, of which the follow.- ing is a full, clear, and exact description.

The invention relates to the manufacture of wooden stave columns, and its object is to provide a new and improved column clamp, arranged to securely bind the freshly glued staves or sides of the column together,

until the glue has set and hardened and the lever D passing through the ring O.

column is ready to be turned in a lathe,

The invention consists of novel features and arts and combinations of the same, whic will be more fully described hereinafter and then pointed out in the claim.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views. f

Figure 1 is a plan view of the improvement as applied; Fig. 2 is a side elevation of the same, part being in section, and Fig. 3 is an enlarged cross section of the operating lever, the section being on the line 3 3 of Fig. 2.

A band A of bent iron or other material is connected at one end by a loop A with a bearing plate B, and the other end of the band A is connected by a loop A2 with a ring O, adapted to be hooked into one of a series of notches D formed on a rib D2, extending integrally on the under side of the operatipg T ie operating lever D has its ivot pin D3 engaging an open bearing B lormed in the side arms B2 of the bearing plate B, and the said lever D is adapted to be locked in place by a pin E, engaging the notches B3 formed in the segmental edges of the sides B2, the pin E also engaging a recess DL formed in the top ed e of the lever D.

n using the device, the lever D is discennected from the bearing plate B, and the latter is placed upon the peripheral face of the column F', and then the band A is passed around the column and the free end of the band is passed over the bearing plate B, and

Specification of Letters Patent.

Application filed March 24, 1908.

Patented March 28, 1909.

Serial No. 423,032.

the ring O is then slipped over the lever D and the latter is fitted with its pivot pin D upon the bearing B1. rlhe operator now engages the ring O with one of the notches D1 and then bears down on the lever D, so that the b andA is drawn tight around the column F to securely hold or bind the staves or sides of the column together, to allow the freshly glued staves or sides to set and harden while the staves or sides are bound together by the clamp. lt is understood that the band A passes around the fulcrum end of the lever D, as indicated in Fig. 2, and consequently when the lever D is swung downward the band A is drawn very tight, and when the desired position is reached the operator inserts the pm E, so as to hold the lever D against accidental return or upward swinging movement. Any desired number of such clamps may be used on one column.

The bearing plate B is preferably slightly curved, as indicated in Fig. 2, to bring the band A as close as possible to the peripheral face of the column F adjacent to the bearing plate B, as will be readily understood by reference to Fig. 2. After' the staves or sides are fastened together and the glue has set, it is only necessary for the operator to remove the pin E and to swing the lever D back into an open position, to release the band A, and to allow of disconnecting the band from the column F, to permit of turning the column in a lathe after the clamp is removed. lt will also be noticed that by connecting the ring O with any one of the notches D1, the device can be used for columns of larger or smaller diameter.

The clamp shown and described is very simple and durable in construction, and can be cheaply manufactured and readily manipulated in the manner above described.

Having thus described my invention, l claim as new and desire to secure by Letters Patent:

A column clamp comprising a iiexible band for encircling the column, a bearing plate attached to one end of the band said bearing plate being provided with an open bearing and a notched segment, and a lever having a pivot pin for engaging the bearing, and having a recess near the pivot pin, said lever having a longitudinal series of notches, and the name to this specification in the presence of lree end of the band helng' provlded Wlth a two suhscrhlng Wltnesses.

rino' for engaging one of the notches and a T pnbfor engagement With the lever recess and JOSEPH E' LAB GFORD' 5 one of the notches on the segment for the I'Vtnesses:

purpose set forth. JAMES J. SMITH,

In testimony whereof I have signed my Moss I. Donn. 

